/Engine/Source/Runtime/Analytics/AnalyticsET/Public/AnalyticsSessionSummaryManager.h
Several processes can collaborate to collect analytics for one principal process. The common case being the Editor acting as the principal process and CrashReportClient (CRC) acting as a subsidiary process. The principal process and its subsidiaries form a group of processes tied together. The last process of the group to exit is responsible to aggregates and sends the final report for the principal process. For any reasons, if the final report cannot be sent by a group, the responsibility to deal with the left over is put on the principal process. The principal process is responsible to clean up the left over from its previous execution(s) and possibly salvage and send reports delayed.
class FAnalyticsSessionSummaryManager